Trying to texture an object in ZBrush3 for Poser 7 I discovered that the UV wrapping types: AUVTiles and GUVTiles do harbor a bug. 
It is neccessairy to Flip the painted texture not only Vertical but also Horizontal (and to Flip Normals) in the export from ZB3 to get a good textured object imported into Poser 7. (BTW. in my memory I used with ZB 2 and Poser6 only FlipV and no FlipNormals to export a textured object from ZB2 to P6, no FlipH nor FlipNormals)
Using AUVTiles And FlipV and FlipH in ZB3 doesn't do the right thing. You can see for your self importing the texture in Poser7.
So I tried again now with GUVTiles and FlipH and FlipV in ZB3 leading to the same kind of weird result.
Thinking that it might be a bug in Poser 7 I tried to import the so textured objects into Silo; the results where the same as in Poser 7. 
So, I went back into ZB3 and tried to wrap the texture into Uvc (Cylindrical UVMap).
And yes, finally the texture comes in the right direction onto the imported object.
Knowing this I can use the beautiful polypaintingfeature in ZB3 to get beautiful textured objects in Poser 7, but the quality of UV wrapping is not as suberb as with the AUVTiles-wrapping type.